What Is My Browser? (User Agent Parser)
Auto-detect your current browser, OS, engine, and device from User Agent. Or paste any UA string to parse it. Recognises common bots (Googlebot, Bingbot, GPTBot, ClaudeBot).
What powers the What Is My Browser? (User Agent Parser)
Auto-detects your current UA
Parses pasted UA strings
Browser + version + engine
OS + version
Device type
Bot detection (Googlebot, GPTBot, etc.)
Why the What Is My Browser? (User Agent Parser) is different
Browser-native
The What Is My Browser? (User Agent Parser) runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Debugging "what browser is the user on"
- Server-side UA analysis
- Bot detection
- Browser support testing
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.